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62c034f6d4
Restore the SIMD optimization for 4.19.38 LTS, 4.14.120 LTS, and 5.0 and newer kernels. This commit squashes the following commits from master in to a single commit which can be applied to 0.8.2.10fa2545- Linux 4.14, 4.19, 5.0+ compat: SIMD save/restoreb88ca2ac- Enable SIMD for encryption095b5412- Fix CONFIG_X86_DEBUG_FPU build failuree5db3134- Linux 5.0 compat: SIMD compatibility Reviewed-by: Fabian Grünbichler <f.gruenbichler@proxmox.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> TEST_ZIMPORT_SKIP="yes"
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _GCM_IMPL_H
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#define _GCM_IMPL_H
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/*
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* GCM function dispatcher.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <sys/zfs_context.h>
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#include <sys/crypto/common.h>
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/*
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* Methods used to define GCM implementation
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*
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* @gcm_mul_f Perform carry-less multiplication
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* @gcm_will_work_f Function tests whether implementation will function
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*/
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typedef void (*gcm_mul_f)(uint64_t *, uint64_t *, uint64_t *);
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typedef boolean_t (*gcm_will_work_f)(void);
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#define GCM_IMPL_NAME_MAX (16)
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typedef struct gcm_impl_ops {
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gcm_mul_f mul;
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gcm_will_work_f is_supported;
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char name[GCM_IMPL_NAME_MAX];
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} gcm_impl_ops_t;
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extern const gcm_impl_ops_t gcm_generic_impl;
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#if defined(__x86_64) && defined(HAVE_PCLMULQDQ)
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extern const gcm_impl_ops_t gcm_pclmulqdq_impl;
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#endif
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/*
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* Initializes fastest implementation
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*/
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void gcm_impl_init(void);
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/*
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* Returns optimal allowed GCM implementation
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*/
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const struct gcm_impl_ops *gcm_impl_get_ops(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _GCM_IMPL_H */
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